OwnerCor van de Water
Owner's Other EVs1994 Chevrolet S10 WaveDriver
Schwinn Sierra
Blue 2002 Toyota Prius
2004 Reva Maini
Currie Phat Flyer
1989 Ford Ranger
1999 EVGlobal
Green 2002 Toyota Prius
2001 Toyota Prius
LocationMountain View, California United States map
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Vehicle
Perfect bike for my wife - nice straight up seating position, light bike and comes with fenders, lights, lock and a silent AC hub motor and detacheable battery pack.
Motor Hub motor 3-Phase AC
DrivetrainAC hub motor
Controller Cheap Chinese
Within 100 meters of the first ride, the controller failed, most likely a loose motor wire which sparked and blew one FET. I replaced it and it worked again.
Update: after fixing the controller two more times and blowing it every time it is engaged while riding, I understand that it has a problem - either with the hall sensors or the driver for the FETs. I will need to get a different controller...
Batteries7, 0.00 Volt,
7s4p configuration of Lithium-Ion 18650 cells. What I really like and what saved the controller from complete destruction is the BMS which not only balances the 7 series cells, but also measures current draw and shuts down on overload. So, instead of burning down the controller when a FET blew, the battery pack simply switched off. Great!
System Voltage24 Volts

code by jerry